diff --git a/addons/account_voucher/voucher_payment_receipt_view.xml b/addons/account_voucher/voucher_payment_receipt_view.xml
index b73538cddcc..98693a3f531 100644
--- a/addons/account_voucher/voucher_payment_receipt_view.xml
+++ b/addons/account_voucher/voucher_payment_receipt_view.xml
@@ -430,7 +430,7 @@
                         </page>
                     </notebook>
                     </sheet>
-                    <<div class="oe_chatter">
+                    <div class="oe_chatter">
                         <field name="message_ids" widget="mail_thread"/>
                     </div>
                 </form>